WLK
Westlake CorpCompany with tickers: WLK
Market Cap
$9.72B
Shares Outstanding
128,122,944
CIK
1262823
CUSIP
960413102
13F Activity (30d)
29 filings
5 filers
Website
Visit website
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
71/100
Short interest 3.1% of shares — P60
Days to cover 4.7 — P70
Short-volume trend +10.6% — P82
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-15). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-06-15 | 3,976,664 | 3,741,497 | +235,167 | 4.70 |
| 2026-05-29 | 3,741,497 | 3,602,338 | +139,159 | 3.85 |
| 2026-05-15 | 3,602,338 | 3,483,406 | +118,932 | 2.49 |
| 2026-04-30 | 3,483,406 | 3,447,322 | +36,084 | 3.55 |
| 2026-04-15 | 3,447,322 | 4,453,477 | -1,006,155 | 3.25 |
| 2026-03-31 | 4,453,477 | 5,029,131 | -575,654 | 3.46 |
| 2026-03-13 | 5,029,131 | 5,018,091 | +11,040 | 3.52 |
| 2026-02-27 | 5,018,091 | 5,554,114 | -536,023 | 3.60 |
| 2026-02-13 | 5,554,114 | 6,098,743 | -544,629 | 3.71 |
| 2026-01-30 | 6,098,743 | 6,299,563 | -200,820 | 4.55 |
| 2026-01-15 | 6,299,563 | 6,195,597 | +103,966 | 4.12 |
| 2025-12-31 | 6,195,597 | 5,467,547 | +728,050 | 4.89 |
| 2025-12-15 | 5,467,547 | 6,197,433 | -729,886 | 2.84 |
| 2025-11-28 | 6,197,433 | 5,020,580 | +1,176,853 | 3.37 |
| 2025-11-14 | 5,020,580 | 5,200,752 | -180,172 | 4.18 |
| 2025-10-31 | 5,200,752 | 5,140,703 | +60,049 | 3.89 |
| 2025-10-15 | 5,140,703 | 4,449,184 | +691,519 | 4.33 |
| 2025-09-30 | 4,449,184 | 4,714,262 | -265,078 | 4.01 |
| 2025-09-15 | 4,714,262 | 4,401,873 | +312,389 | 5.23 |
| 2025-08-29 | 4,401,873 | 4,643,380 | -241,507 | 3.77 |
| 2025-08-15 | 4,643,380 | 4,351,578 | +291,802 | 3.13 |
| 2025-07-31 | 4,351,578 | 3,541,549 | +810,029 | 3.59 |
| 2025-07-15 | 3,541,549 | 3,024,004 | +517,545 | 3.26 |
| 2025-06-30 | 3,024,004 | 2,830,365 | +193,639 | 2.40 |
Showing 1–24 of 24 settlements